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-rw-r--r--dts/Bindings/dma/nbpfaxi.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/dts/Bindings/dma/nbpfaxi.txt b/dts/Bindings/dma/nbpfaxi.txt
index d5e2522b9e..d2e1e62e34 100644
--- a/dts/Bindings/dma/nbpfaxi.txt
+++ b/dts/Bindings/dma/nbpfaxi.txt
@@ -23,6 +23,14 @@ Required properties
#define NBPF_SLAVE_RQ_LEVEL 4
Optional properties:
+- max-burst-mem-read: limit burst size for memory reads
+ (DMA_MEM_TO_MEM/DMA_MEM_TO_DEV) to this value, specified in bytes, rather
+ than using the maximum burst size allowed by the hardware's buffer size.
+- max-burst-mem-write: limit burst size for memory writes
+ (DMA_DEV_TO_MEM/DMA_MEM_TO_MEM) to this value, specified in bytes, rather
+ than using the maximum burst size allowed by the hardware's buffer size.
+ If both max-burst-mem-read and max-burst-mem-write are set, DMA_MEM_TO_MEM
+ will use the lower value.
You can use dma-channels and dma-requests as described in dma.txt, although they
won't be used, this information is derived from the compatibility string.